False. Acceleration is a change of speed or direction over time.
False. Acceleration is the rate of change of velocity. Average velocity is the total displacement divided by the total time.
True. Acceleration is any change in velocity, including a change in direction. So when you change direction, you are indeed accelerating.
'Acceleration' is a change in the speed and/or direction of motion.
False
True
False. Acceleration is the rate of change of velocity. Average velocity is the total displacement divided by the total time.
True. Acceleration is any change in velocity, including a change in direction. So when you change direction, you are indeed accelerating.
'Acceleration' is a change in the speed and/or direction of motion.
Indirectly, yes. If the graph is a straight line there is no acceleration, if the graph is not linear there is acceleration.
true
False
True
False. Average acceleration is calculated as the change in velocity divided by the time interval over which the change occurs, not from the slope of a velocity vs. time graph.
False. At least the way "acceleration" is described in physics, acceleration involves any change in velocity - so the "accelerating" object can speed up, slow down, or simply change direction.
Distance = (1/2 of acceleration) x (time squared)You can change this around to solve it for acceleration or time.(Time squared) = (distance)/(half of acceleration)Time = the square root of [ (2 x distance)/(acceleration) ]Be careful . . .This is only true if the distance and the speed are both zero when the time begins.
True. Acceleration is the rate at which an object's velocity changes, whether in speed, direction, or both. It can be positive (speeding up), negative (slowing down), or changing direction.
It is false.